Global Patent Index - EP 1002777 A1

EP 1002777 A1 2000-05-24 - PROCESS AND MECHANISM FOR IN SITU SENSITIZATION OF AQUEOUS EXPLOSIVES

Title (en)

PROCESS AND MECHANISM FOR IN SITU SENSITIZATION OF AQUEOUS EXPLOSIVES

Title (de)

VERFAHREN UND MECHANISMUS ZUR IN SITU SENSIBILISIERUNG VON WASSERENTHALTENDEN EXPLOSIVSTOFFEN

Title (fr)

PROCEDE ET SYSTEME PERMETTANT LA SENSIBILISATION IN SITU D'EXPLOSIFS DE BASE AQUEUSE

Publication

EP 1002777 A1 (EN)

Application

EP 97955093 A

Priority

  • ES 9700291 W
  • ES 9701411 A

Abstract (en)

The process for sensitizing in situ aqueous explosives before charging the mine holes comprises the formation of an emulsion or dispersion gas-in-liquid from a low sensitivity or non explosive matrix product which consists of a liquid mixture in solution, emulsion or suspension of oxidant in fuel, and a gas. The density of the final explosive product can be varied as a function of the gas flow rate and can be controlled before introducing it into the hole. The installation comprises a tank (1) with the matrix product, a gas reserve (10), a mixture (5), a pump (3) and a gas flow rate regulating device (8) and optionally a tank (2) with a gas bubble stabilizing agent, a dosing pump (4) and a flow meter (7).

IPC 1-7 (main, further and additional classification)

C06B 21/00; C06B 47/00

IPC 8 full level (invention and additional information)

C06B 21/00 (2006.01); C06B 23/00 (2006.01); C06B 47/00 (2006.01); B01F 3/08 (2006.01)

CPC (invention and additional information)

C06B 21/0008 (2013.01); C06B 23/002 (2013.01); C06B 47/00 (2013.01); B01F 3/0807 (2013.01); B01F 2215/0057 (2013.01)

Citation (search report)

See references of WO 9900342A1

Designated contracting state (EPC)

DE FI FR GB IT PT SE

DOCDB simple family

EP 1002777 A1 20000524; EP 1002777 B1 20030122; AP 1245 A 20040206; AP 9901726 A0 19991231; AR 009878 A1 20000503; AU 5121998 A 19990119; AU 755410 B2 20021212; BR 9714747 A 20000725; CA 2294893 A1 19990107; CA 2294893 C 20070703; DE 69718681 D1 20030227; DE 69718681 T2 20031127; ES 2123468 A1 19990101; ES 2123468 B1 20000201; NO 316270 B1 20040105; NO 996421 A 20000218; NO 996421 D0 19991223; NZ 501972 A 20020828; PE 92799 A1 19990928; PT 1002777 E 20030630; US 2002124918 A1 20020912; US 6537399 B2 20030325; WO 9900342 A1 19990107; ZA 9800130 B 19980708